Merge branch 'x86/untangle2' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen into x86/headers

Conflicts:
	arch/x86/include/asm/page.h
	arch/x86/include/asm/pgtable.h
	arch/x86/mach-voyager/voyager_smp.c
	arch/x86/mm/fault.c

1 files changed, 67 insertions, 255 deletions

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 8fef0f6bfbb6..62024ff897d9 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -3,164 +3,7 @@
 
 #include <asm/page.h>
 
-#define FIRST_USER_ADDRESS      0
-
-#define _PAGE_BIT_PRESENT       0       /* is present */
-#define _PAGE_BIT_RW            1       /* writeable */
-#define _PAGE_BIT_USER          2       /* userspace addressable */
-#define _PAGE_BIT_PWT           3       /* page write through */
-#define _PAGE_BIT_PCD           4       /* page cache disabled */
-#define _PAGE_BIT_ACCESSED      5       /* was accessed (raised by CPU) */
-#define _PAGE_BIT_DIRTY         6       /* was written to (raised by CPU) */
-#define _PAGE_BIT_PSE           7       /* 4 MB (or 2MB) page */
-#define _PAGE_BIT_PAT           7       /* on 4KB pages */
-#define _PAGE_BIT_GLOBAL        8       /* Global TLB entry PPro+ */
-#define _PAGE_BIT_UNUSED1       9       /* available for programmer */
-#define _PAGE_BIT_IOMAP         10      /* flag used to indicate IO mapping */
-#define _PAGE_BIT_UNUSED3       11
-#define _PAGE_BIT_PAT_LARGE     12      /* On 2MB or 1GB pages */
-#define _PAGE_BIT_SPECIAL       _PAGE_BIT_UNUSED1
-#define _PAGE_BIT_CPA_TEST      _PAGE_BIT_UNUSED1
-#define _PAGE_BIT_NX           63       /* No execute: only valid after cpuid check */
-
-/* If _PAGE_BIT_PRESENT is clear, we use these: */
-/* - if the user mapped it with PROT_NONE; pte_present gives true */
-#define _PAGE_BIT_PROTNONE      _PAGE_BIT_GLOBAL
-/* - set: nonlinear file mapping, saved PTE; unset:swap */
-#define _PAGE_BIT_FILE          _PAGE_BIT_DIRTY
-
-#define _PAGE_PRESENT   (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT)
-#define _PAGE_RW        (_AT(pteval_t, 1) << _PAGE_BIT_RW)
-#define _PAGE_USER      (_AT(pteval_t, 1) << _PAGE_BIT_USER)
-#define _PAGE_PWT       (_AT(pteval_t, 1) << _PAGE_BIT_PWT)
-#define _PAGE_PCD       (_AT(pteval_t, 1) << _PAGE_BIT_PCD)
-#define _PAGE_ACCESSED  (_AT(pteval_t, 1) << _PAGE_BIT_ACCESSED)
-#define _PAGE_DIRTY     (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
-#define _PAGE_PSE       (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
-#define _PAGE_GLOBAL    (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
-#define _PAGE_UNUSED1   (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
-#define _PAGE_IOMAP     (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
-#define _PAGE_UNUSED3   (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3)
-#define _PAGE_PAT       (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
-#define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
-#define _PAGE_SPECIAL   (_AT(pteval_t, 1) << _PAGE_BIT_SPECIAL)
-#define _PAGE_CPA_TEST  (_AT(pteval_t, 1) << _PAGE_BIT_CPA_TEST)
-#define __HAVE_ARCH_PTE_SPECIAL
-
-#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
-#define _PAGE_NX        (_AT(pteval_t, 1) << _PAGE_BIT_NX)
-#else
-#define _PAGE_NX        (_AT(pteval_t, 0))
-#endif
-
-#define _PAGE_FILE      (_AT(pteval_t, 1) << _PAGE_BIT_FILE)
-#define _PAGE_PROTNONE  (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
-
-#define _PAGE_TABLE     (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER |        \
-                         _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _KERNPG_TABLE   (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED |    \
-                         _PAGE_DIRTY)
-
-/* Set of bits not changed in pte_modify */
-#define _PAGE_CHG_MASK  (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT |         \
-                         _PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY)
-
-#define _PAGE_CACHE_MASK        (_PAGE_PCD | _PAGE_PWT)
-#define _PAGE_CACHE_WB          (0)
-#define _PAGE_CACHE_WC          (_PAGE_PWT)
-#define _PAGE_CACHE_UC_MINUS    (_PAGE_PCD)
-#define _PAGE_CACHE_UC          (_PAGE_PCD | _PAGE_PWT)
-
-#define PAGE_NONE       __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
-#define PAGE_SHARED     __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
-                                 _PAGE_ACCESSED | _PAGE_NX)
-
-#define PAGE_SHARED_EXEC        __pgprot(_PAGE_PRESENT | _PAGE_RW |     \
-                                         _PAGE_USER | _PAGE_ACCESSED)
-#define PAGE_COPY_NOEXEC        __pgprot(_PAGE_PRESENT | _PAGE_USER |   \
-                                         _PAGE_ACCESSED | _PAGE_NX)
-#define PAGE_COPY_EXEC          __pgprot(_PAGE_PRESENT | _PAGE_USER |   \
-                                         _PAGE_ACCESSED)
-#define PAGE_COPY               PAGE_COPY_NOEXEC
-#define PAGE_READONLY           __pgprot(_PAGE_PRESENT | _PAGE_USER |   \
-                                         _PAGE_ACCESSED | _PAGE_NX)
-#define PAGE_READONLY_EXEC      __pgprot(_PAGE_PRESENT | _PAGE_USER |   \
-                                         _PAGE_ACCESSED)
-
-#define __PAGE_KERNEL_EXEC                                              \
-        (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
-#define __PAGE_KERNEL           (__PAGE_KERNEL_EXEC | _PAGE_NX)
-
-#define __PAGE_KERNEL_RO                (__PAGE_KERNEL & ~_PAGE_RW)
-#define __PAGE_KERNEL_RX                (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
-#define __PAGE_KERNEL_EXEC_NOCACHE      (__PAGE_KERNEL_EXEC | _PAGE_PCD | _PAGE_PWT)
-#define __PAGE_KERNEL_WC                (__PAGE_KERNEL | _PAGE_CACHE_WC)
-#define __PAGE_KERNEL_NOCACHE           (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
-#define __PAGE_KERNEL_UC_MINUS          (__PAGE_KERNEL | _PAGE_PCD)
-#define __PAGE_KERNEL_VSYSCALL          (__PAGE_KERNEL_RX | _PAGE_USER)
-#define __PAGE_KERNEL_VSYSCALL_NOCACHE  (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT)
-#define __PAGE_KERNEL_LARGE             (__PAGE_KERNEL | _PAGE_PSE)
-#define __PAGE_KERNEL_LARGE_NOCACHE     (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE)
-#define __PAGE_KERNEL_LARGE_EXEC        (__PAGE_KERNEL_EXEC | _PAGE_PSE)
-
-#define __PAGE_KERNEL_IO                (__PAGE_KERNEL | _PAGE_IOMAP)
-#define __PAGE_KERNEL_IO_NOCACHE        (__PAGE_KERNEL_NOCACHE | _PAGE_IOMAP)
-#define __PAGE_KERNEL_IO_UC_MINUS       (__PAGE_KERNEL_UC_MINUS | _PAGE_IOMAP)
-#define __PAGE_KERNEL_IO_WC             (__PAGE_KERNEL_WC | _PAGE_IOMAP)
-
-#define PAGE_KERNEL                     __pgprot(__PAGE_KERNEL)
-#define PAGE_KERNEL_RO                  __pgprot(__PAGE_KERNEL_RO)
-#define PAGE_KERNEL_EXEC                __pgprot(__PAGE_KERNEL_EXEC)
-#define PAGE_KERNEL_RX                  __pgprot(__PAGE_KERNEL_RX)
-#define PAGE_KERNEL_WC                  __pgprot(__PAGE_KERNEL_WC)
-#define PAGE_KERNEL_NOCACHE             __pgprot(__PAGE_KERNEL_NOCACHE)
-#define PAGE_KERNEL_UC_MINUS            __pgprot(__PAGE_KERNEL_UC_MINUS)
-#define PAGE_KERNEL_EXEC_NOCACHE        __pgprot(__PAGE_KERNEL_EXEC_NOCACHE)
-#define PAGE_KERNEL_LARGE               __pgprot(__PAGE_KERNEL_LARGE)
-#define PAGE_KERNEL_LARGE_NOCACHE       __pgprot(__PAGE_KERNEL_LARGE_NOCACHE)
-#define PAGE_KERNEL_LARGE_EXEC          __pgprot(__PAGE_KERNEL_LARGE_EXEC)
-#define PAGE_KERNEL_VSYSCALL            __pgprot(__PAGE_KERNEL_VSYSCALL)
-#define PAGE_KERNEL_VSYSCALL_NOCACHE    __pgprot(__PAGE_KERNEL_VSYSCALL_NOCACHE)
-
-#define PAGE_KERNEL_IO                  __pgprot(__PAGE_KERNEL_IO)
-#define PAGE_KERNEL_IO_NOCACHE          __pgprot(__PAGE_KERNEL_IO_NOCACHE)
-#define PAGE_KERNEL_IO_UC_MINUS         __pgprot(__PAGE_KERNEL_IO_UC_MINUS)
-#define PAGE_KERNEL_IO_WC               __pgprot(__PAGE_KERNEL_IO_WC)
-
-/*         xwr */
-#define __P000  PAGE_NONE
-#define __P001  PAGE_READONLY
-#define __P010  PAGE_COPY
-#define __P011  PAGE_COPY
-#define __P100  PAGE_READONLY_EXEC
-#define __P101  PAGE_READONLY_EXEC
-#define __P110  PAGE_COPY_EXEC
-#define __P111  PAGE_COPY_EXEC
-
-#define __S000  PAGE_NONE
-#define __S001  PAGE_READONLY
-#define __S010  PAGE_SHARED
-#define __S011  PAGE_SHARED
-#define __S100  PAGE_READONLY_EXEC
-#define __S101  PAGE_READONLY_EXEC
-#define __S110  PAGE_SHARED_EXEC
-#define __S111  PAGE_SHARED_EXEC
-
-/*
- * early identity mapping  pte attrib macros.
- */
-#ifdef CONFIG_X86_64
-#define __PAGE_KERNEL_IDENT_LARGE_EXEC  __PAGE_KERNEL_LARGE_EXEC
-#else
-/*
- * For PDE_IDENT_ATTR include USER bit. As the PDE and PTE protection
- * bits are combined, this will alow user to access the high address mapped
- * VDSO in the presence of CONFIG_COMPAT_VDSO
- */
-#define PTE_IDENT_ATTR   0x003          /* PRESENT+RW */
-#define PDE_IDENT_ATTR   0x067          /* PRESENT+RW+USER+DIRTY+ACCESSED */
-#define PGD_IDENT_ATTR   0x001          /* PRESENT (no other attributes) */
-#endif
+#include <asm/pgtable_types.h>
 
 /*
  * Macro to mark a page protection value as UC-
@@ -172,9 +15,6 @@
 
 #ifndef __ASSEMBLY__
 
-#define pgprot_writecombine     pgprot_writecombine
-extern pgprot_t pgprot_writecombine(pgprot_t prot);
-
 /*
  * ZERO_PAGE is a global shared page that is always zero: used
  * for zero-mapped memory areas etc..
@@ -185,6 +25,66 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 extern spinlock_t pgd_lock;
 extern struct list_head pgd_list;
 
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else  /* !CONFIG_PARAVIRT */
+#define set_pte(ptep, pte)              native_set_pte(ptep, pte)
+#define set_pte_at(mm, addr, ptep, pte) native_set_pte_at(mm, addr, ptep, pte)
+
+#define set_pte_present(mm, addr, ptep, pte)                            \
+        native_set_pte_present(mm, addr, ptep, pte)
+#define set_pte_atomic(ptep, pte)                                       \
+        native_set_pte_atomic(ptep, pte)
+
+#define set_pmd(pmdp, pmd)              native_set_pmd(pmdp, pmd)
+
+#ifndef __PAGETABLE_PUD_FOLDED
+#define set_pgd(pgdp, pgd)              native_set_pgd(pgdp, pgd)
+#define pgd_clear(pgd)                  native_pgd_clear(pgd)
+#endif
+
+#ifndef set_pud
+# define set_pud(pudp, pud)             native_set_pud(pudp, pud)
+#endif
+
+#ifndef __PAGETABLE_PMD_FOLDED
+#define pud_clear(pud)                  native_pud_clear(pud)
+#endif
+
+#define pte_clear(mm, addr, ptep)       native_pte_clear(mm, addr, ptep)
+#define pmd_clear(pmd)                  native_pmd_clear(pmd)
+
+#define pte_update(mm, addr, ptep)              do { } while (0)
+#define pte_update_defer(mm, addr, ptep)        do { } while (0)
+
+static inline void __init paravirt_pagetable_setup_start(pgd_t *base)
+{
+        native_pagetable_setup_start(base);
+}
+
+static inline void __init paravirt_pagetable_setup_done(pgd_t *base)
+{
+        native_pagetable_setup_done(base);
+}
+
+#define pgd_val(x)      native_pgd_val(x)
+#define __pgd(x)        native_make_pgd(x)
+
+#ifndef __PAGETABLE_PUD_FOLDED
+#define pud_val(x)      native_pud_val(x)
+#define __pud(x)        native_make_pud(x)
+#endif
+
+#ifndef __PAGETABLE_PMD_FOLDED
+#define pmd_val(x)      native_pmd_val(x)
+#define __pmd(x)        native_make_pmd(x)
+#endif
+
+#define pte_val(x)      native_pte_val(x)
+#define __pte(x)        native_make_pte(x)
+
+#endif  /* CONFIG_PARAVIRT */
+
 /*
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
@@ -316,8 +216,6 @@ static inline pte_t pte_mkspecial(pte_t pte)
         return pte_set_flags(pte, _PAGE_SPECIAL);
 }
 
-extern pteval_t __supported_pte_mask;
-
 /*
  * Mask out unsupported bits in a present pgprot.  Non-present pgprots
  * can use those bits for other purposes, so leave them be.
@@ -390,75 +288,6 @@ static inline int is_new_memtype_allowed(unsigned long flags,
         return 1;
 }
 
-#ifndef __ASSEMBLY__
-/* Indicate that x86 has its own track and untrack pfn vma functions */
-#define __HAVE_PFNMAP_TRACKING
-
-#define __HAVE_PHYS_MEM_ACCESS_PROT
-struct file;
-pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
-                              unsigned long size, pgprot_t vma_prot);
-int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
-                              unsigned long size, pgprot_t *vma_prot);
-#endif
-
-/* Install a pte for a particular vaddr in kernel space. */
-void set_pte_vaddr(unsigned long vaddr, pte_t pte);
-
-#ifdef CONFIG_X86_32
-extern void native_pagetable_setup_start(pgd_t *base);
-extern void native_pagetable_setup_done(pgd_t *base);
-#else
-static inline void native_pagetable_setup_start(pgd_t *base) {}
-static inline void native_pagetable_setup_done(pgd_t *base) {}
-#endif
-
-struct seq_file;
-extern void arch_report_meminfo(struct seq_file *m);
-
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else  /* !CONFIG_PARAVIRT */
-#define set_pte(ptep, pte)              native_set_pte(ptep, pte)
-#define set_pte_at(mm, addr, ptep, pte) native_set_pte_at(mm, addr, ptep, pte)
-
-#define set_pte_present(mm, addr, ptep, pte)                            \
-        native_set_pte_present(mm, addr, ptep, pte)
-#define set_pte_atomic(ptep, pte)                                       \
-        native_set_pte_atomic(ptep, pte)
-
-#define set_pmd(pmdp, pmd)              native_set_pmd(pmdp, pmd)
-
-#ifndef __PAGETABLE_PUD_FOLDED
-#define set_pgd(pgdp, pgd)              native_set_pgd(pgdp, pgd)
-#define pgd_clear(pgd)                  native_pgd_clear(pgd)
-#endif
-
-#ifndef set_pud
-# define set_pud(pudp, pud)             native_set_pud(pudp, pud)
-#endif
-
-#ifndef __PAGETABLE_PMD_FOLDED
-#define pud_clear(pud)                  native_pud_clear(pud)
-#endif
-
-#define pte_clear(mm, addr, ptep)       native_pte_clear(mm, addr, ptep)
-#define pmd_clear(pmd)                  native_pmd_clear(pmd)
-
-#define pte_update(mm, addr, ptep)              do { } while (0)
-#define pte_update_defer(mm, addr, ptep)        do { } while (0)
-
-static inline void __init paravirt_pagetable_setup_start(pgd_t *base)
-{
-        native_pagetable_setup_start(base);
-}
-
-static inline void __init paravirt_pagetable_setup_done(pgd_t *base)
-{
-        native_pagetable_setup_done(base);
-}
-#endif  /* CONFIG_PARAVIRT */
-
 #endif  /* __ASSEMBLY__ */
 
 #ifdef CONFIG_X86_32
@@ -600,7 +429,7 @@ static inline unsigned long pmd_pfn(pmd_t pmd)
 
 static inline int pud_large(pud_t pud)
 {
-        return (pud_flags(pud) & (_PAGE_PSE | _PAGE_PRESENT)) ==
+        return (pud_val(pud) & (_PAGE_PSE | _PAGE_PRESENT)) ==
                 (_PAGE_PSE | _PAGE_PRESENT);
 }
 
@@ -608,6 +437,11 @@ static inline int pud_bad(pud_t pud)
 {
         return (pud_flags(pud) & ~(_KERNPG_TABLE | _PAGE_USER)) != 0;
 }
+#else
+static inline int pud_large(pud_t pud)
+{
+        return 0;
+}
 #endif  /* PAGETABLE_LEVELS > 2 */
 
 #if PAGETABLE_LEVELS > 3
@@ -676,28 +510,6 @@ static inline int pgd_none(pgd_t pgd)
 
 #ifndef __ASSEMBLY__
 
-enum {
-        PG_LEVEL_NONE,
-        PG_LEVEL_4K,
-        PG_LEVEL_2M,
-        PG_LEVEL_1G,
-        PG_LEVEL_NUM
-};
-
-#ifdef CONFIG_PROC_FS
-extern void update_page_count(int level, unsigned long pages);
-#else
-static inline void update_page_count(int level, unsigned long pages) { }
-#endif
-
-/*
- * Helper function that returns the kernel pagetable entry controlling
- * the virtual address 'address'. NULL means no pagetable entry present.
- * NOTE: the return type is pte_t but if the pmd is PSE then we return it
- * as a pte too.
- */
-extern pte_t *lookup_address(unsigned long address, unsigned int *level);
-
 /* local pte updates need not use xchg for locking */
 static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep)
 {